
Oracle PeopleSoft Zero-Day Exploited by ShinyHunters, Advisory Published
Oracle published a security advisory on June 10, 2026, for CVE-2026-35273, a critical remote code execution flaw in PeopleSoft Enterprise PeopleTools. This vulnerability was actively exploited as a zero-day by the ShinyHunters cybercrime group in a campaign that ran from May 27 to June 9, 2026. The attacks compromised over 100 organizations, primarily colleges and universities, leading to data theft.
Signal context
First seen: Jun 10, 2026
Last updated: Jun 29, 2026
Status: Public signal
Key points
- Critical remote code execution flaw (CVE-2026-35273) in Oracle PeopleSoft Enterprise PeopleTools.
- Exploited as a zero-day by ShinyHunters cybercrime group.
- Campaign active from May 27 to June 9, 2026, impacting over 100 organizations, mainly educational institutions.
Signal analysis
BetaIt helps compare this signal with other published signals without treating the labels as final determinations.
Likely country: 🇨🇦 Canada
inferred from source domains
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
- 1 signal in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Massive Breach Exposes 74000 Networks, From Oracle and Samsung to a NATO Contractor - SOFX Reporthttps://www.sofx.com/massive-breach-exposes-74000-networks-from-oracle-and-samsung-to-a-nato-contractor/Public source from sofx.com.
Oracle PeopleSoft Zero-Day Vulnerability (CVE-2026-35273) Exploited by ShinyHunters - eSentirehttps://www.esentire.com/security-advisories/oracle-peoplesoft-zero-day-vulnerability-cve-2026-35273-exploited-by-shinyhuntersPublic source from esentire.com.
ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273) to Breach Universities - The Hacker Newshttps://thehackernews.com/2026/06/shinyhunters-exploits-oracle-peoplesoft.htmlPublic source from thehackernews.com.
AL26-014 – FortiBleed leak of thousands of compromised credentials impacting Fortinet devices - Canadian Centre for Cyber Securityhttps://www.cyber.gc.ca/en/alerts-advisories/al26-014-fortibleed-leak-thousands-compromised-credentials-impacting-fortinet-devicesPublic source from cyber.gc.ca.
FortiBleed: 75,000 Fortinet Firewalls Compromised: Global Enterprises Exposed – Claim Your Ethical Disclosure | Hudson Rockhttps://www.hudsonrock.com/blog/fortibleed-75000-fortinet-firewalls-compromised-global-enterprises-exposed-claim-your-ethical-disclosurePublic source from hudsonrock.com.
SWK Cybersecurity News Recap June 2026https://www.swktech.com/swk-cybersecurity-news-recap-june-2026/Public source from swktech.com.
NAIC confirms PeopleSoft breach as cybercriminals target insurance regulatorshttps://www.insurancebusinessmag.com/us/news/cyber/naic-confirms-peoplesoft-breach-as-cybercriminals-target-insurance-regulators-580134.aspxPublic source from insurancebusinessmag.com.
SWK Cybersecurity News Recap June 2026https://www.swktech.com/blog/swk-cybersecurity-news-recap-june-2026Public source from swktech.com.
Nissan discloses employee data breach linked to Oracle zero-day attackshttps://www.bleepingcomputer.com/news/security/nissan-discloses-employee-data-breach-linked-to-oracle-zero-day-attacks/Public source from bleepingcomputer.com.
Related signals
Grouped by why the signal is relevant.
NIFTY Corporation Affected by KDDI Corporation Data Breach
NIFTY Corporation, a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. NIFTY Corporation customers' email addresses and passwords may have been compromised.
BIGLOBE Inc. Affected by KDDI Corporation Data Breach
BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.
STNet, Inc. Affected by KDDI Corporation Data Breach
STNet, Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. STNet customers' email addresses and passwords may have been compromised.
KDDI Web Communications Customer Data Affected by KDDI Email System Breach
KDDI Web Communications, a subsidiary of KDDI, was impacted by the data breach in KDDI Corporation's email system, disclosed on June 28, 2026. The incident, caused by a third-party software vulnerability, led to the potential exposure of up to 14.2 million email addresses and passwords belonging to customers across six Japanese ISPs, including KDDI Web Communications.
JCOM Co., Ltd. Affected by KDDI Corporation Data Breach
JCOM Co., Ltd., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. JCOM customers' email addresses and passwords may have been compromised.
Polymarket Suffers $3 Million Crypto Drain via Third-Party Vendor Compromise
Prediction market platform Polymarket disclosed a breach where hackers compromised a third-party vendor. The attackers injected malicious code into the Polymarket website for some users, leading to the draining of approximately $3 million in pUSD (USDC-backed) from at least 11 user wallets. The stolen funds were subsequently swapped and moved to Ethereum. Polymarket has contained the incident, committed to full refunds for affected users, and is in the process of notifying victims. This incident highlights supply-chain vulnerabilities in web frontends and crypto platforms.
